Class: Arel::Sql::Christener

Inherits:
Object
  • Object
show all
Defined in:
lib/arel/engines/sql/christener.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Christener

Returns a new instance of Christener.



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# File 'lib/arel/engines/sql/christener.rb', line 4

def initialize
  @names = {}
end

Instance Method Details

#name_for(relation) ⇒ Object 



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# File 'lib/arel/engines/sql/christener.rb', line 8

def name_for(relation)
  table = relation.table
  name = table.table_alias || table.name
  list = @names[name] ||= []

  list << table unless list.include? table

  idx = list.index table
  name + (idx == 0 ? '' : "_#{idx + 1}")
end